https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93905
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-8 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:f4335f978249a2991620f38e118adf790e677968 commit r8-10082-gf4335f978249a2991620f38e118adf790e677968 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Feb 26 09:02:05 2020 +0100 c++: Fix rejects-valid bug in cxx_eval_outermost_constant_expr [PR93905] The following testcase is rejected in 8.3, but was accepted in 8.2 and is in 9.x. This started with my PR87934 * constexpr.c (cxx_eval_constant_expression) <case CONSTRUCTOR>: Do re-process TREE_CONSTANT CONSTRUCTORs if they aren't reduced constant expressions. backport, where the NSDMI CONSTRUCTOR that contains CONST_DECLs is now constexpr evaluated so that it doesn't contain them. The difference from 9.x is that 9.x doesn't call get_target_expr if we got a CONSTRUCTOR for a class type for something that has been originally a CONSTRUCTOR too. This patch cherry-picks just that hunk of the r9-3835 change. 2020-02-26 Jakub Jelinek <ja...@redhat.com> PR c++/93905 Backported from mainline 2018-11-04 Jason Merrill <ja...@redhat.com> * constexpr.c (cxx_eval_outermost_constant_expr): Don't wrap a CONSTRUCTOR if one was passed in. * g++.dg/cpp0x/pr93905.C: New test.
